![jadenja712](/avatars/25216.jpg)
jadenja712
17.11.2019 •
Mathematics
Jarred sells dvds. his inventory shows that he has a total of 3500 dvds. he has 2342 more contemporary titles than classic titles. let x represent the number of contemporary titles and y represent the number of classic titles. the system of equations models the given information for both types of dvds.
Solved
Show answers
More tips
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics Determine if point N lies on the circle lies on the circle K Circle K with center (0,0) and radius 5. Point N (3,4) A. Yes B. No...
- M Mathematics Topic 4 Pythagorean Theorem Find each missing length to the nearest tenth. Answers 13-------- 14---------- 15--------- 16------------- 17------- 18--------- 19-------...
- C Computers and Technology What can a dimm use to hold data and amplify a signal just before the data is written to the module?...
- C Chemistry Was the dune buggy accelerating or moving at a constant speed...
- H History In addition to the problems stated here, what other issue contributed to the problems faced by native americans on the great plains at the end of the 19th century?...
Ответ:
Jared has a total of 3500 dvds of two types, contemporarys and classics.
we also know that Jared has 2342 more contemporary dvds than classics.
Now, how we write this as system of equations?
if x is the number of classics, and y the number of contemporarys, then:
1) x + y = 3500
and
2) y - x = 2342
this is the system of equations, but just for fun we can solve it!
in the second equation we can leave y alone in the right side ande get: y = 2342 + x, and then replace it in the first equation.
x + y = 3500
x + (2342 + x) = 3500
2*x = 3500 - 2342 =1158
x = 1158/2 = 579
So Jared has 579 classic titles.
then:
y + x =3500
y + 579 = 3500
y = 3500 - 579 = 2921
And Jared has 2921 contemporary titles.
Ответ: